Results 41 to 50 of about 656 (162)
Commercial Applications of Microalgae [PDF]
The first use of microalgae by humans dates back 2000 years to the Chinese, who used Nostoc to survive during famine. However, microalgal biotechnology only really began to develop in the middle of the last century.
Duran, Elie +3 more
core +3 more sources
Abstract The benthic diatom Haslea ostrearia which has the capacity to excrete a blue pigment called marennine remains a challenging organism to culture in a photobioreactor (PBR). This study investigates the interest of culture in conventional mixed PBR over immobilized-cell protocols which proved successful but have rather low extracellular ...
Nghiem Xuan, R +4 more
openaire +2 more sources
Light is a key factor in triggering sexual reproduction in the pennate diatom Haslea ostrearia [PDF]
Sexual reproduction is an obligatory phase in the life cycle of most diatoms, as cell size decreases with successive vegetative divisions and the maximal cell size is only restored by a specialized cell, the auxospore, which follows zygote formation as a result of sexual reproduction.
Jean-Luc Mouget +4 more
openaire +3 more sources
Impact of Blue Haslea spp. Blooms on Benthic Diatom and Bacterial Communities
Climate change and nutrient enrichment are increasing the frequency of algal blooms, with sometimes significant impacts on coastal ecosystems. Haslea ostrearia blooms have been documented in oyster ponds and are not harmful, yet their effects in open ...
Julie Seveno +6 more
doaj +1 more source
Extraction et caractérisation de la Marennine [PDF]
RÉSUMÉ : L'appellation "marennine" désigne un pigment produit par des diatomées du genre Haslea, possédant des propriétés bioactives pouvant affecter la pathogénicité de certaines bactéries. Mieux connue pour sa faculté à teindre la chair des mollusques,
Bélanger, William
core
The diatom Haslea ostrearia produces a blue-green pigment known as marennine, which exhibits remarkable antimicrobial, anti-viral, antiproliferative, allelopathic, and antioxidant properties.
Feriel KHIAR +4 more
doaj +1 more source
Aktivitas Antibakteri Pigmen Ekstraseluler Marennine Terhadap Vibrio alginolyticus dan Bacillus cereus (Kajian Suhu dan Lama Waktu Pemanasan) [PDF]
Tingkat konsumsi produk perikanan setiap tahunnya terus mengalami peningkatan, sehingga pemenuhan kebutuhan banyak dibebankan dari hasil budidaya. Usaha budidaya tidak lepas dari ancaman kerugian akibat timbulnya penyakit hasil infeksi bakteri patogen
Fitriani, Amalia Gita +2 more
core
A blue-pigmented hasleoid diatom, Haslea sp., from the Adriatic Sea [PDF]
We present the first report and description of the pinnate diatom Haslea sp. from the northeastern Adriatic Sea, Croatia, producing a blue pigment.
Palińska, Katarzyna A. +1 more
core +1 more source
Taking the Heat: The Effect of Growth Temperature on Lipids of the Diatoms [PDF]
Diatoms are one of the largest groups of primary producers in the oceans, and because of their environmental and increasing economic importance, more information is being revealed about their lipid biochemistry. Mass spectrometry techniques were used to
Dodson, Vernon Joshua
core +1 more source
First insight on interactions between bacteria and the marine diatom Haslea ostrearia: Algal growth and metabolomic fingerprinting [PDF]
Abstract A first insight on the interactions between bacteria isolated from monospecific cultures of the marine diatom Haslea ostrearia and this microalgae is described in this work. From 28 bacterial isolates, the maximal growth rate and the maximal cell concentration were on average 58% and 27% higher (max. 67% for isolate B22).
Lepinay, Alexandra +6 more
openaire +4 more sources

